Copper is purified by electrolytic refining of blister copper. The correct statement(s) about this process is (are)

Options

A. Impure Cu stirp is used as cathode
B. Acidified aqueous `CuSO_(4)` is used as electrolyte
C. Pure Cu deposits at cathode
D. Impurities settle as anode-mud

Explanation

To answer the question about the purification of copper through electrolytic refining of blister copper, we will outline the process step by step and identify the correct statements regarding this method.

### Step-by-Step Solution:

1. **Understanding the Electrolytic Refining Process**:
- Electrolytic refining is a method used to purify metals, including copper. It involves the use of an electrolytic cell.

2. **Components of the Electrolytic Cell**:
- The electrolytic cell consists of two electrodes: the anode and the cathode.
- The **anode** is made of impure copper (blister copper), while the **cathode** is a thin strip of pure copper.

3. **Electrolyte Solution**:
- The electrolyte used in this process is typically a solution of copper(II) sulfate (CuSO4).

4. **Electrolysis Process**:
- When an electric current is passed through the cell, copper ions from the anode dissolve into the electrolyte.
- The reaction at the anode can be represented as:
\[ \text{Cu (s)} \rightarrow \text{Cu}^{2+} (aq) + 2\text{e}^- \]
- These copper ions migrate through the electrolyte to the cathode, where they are deposited as pure copper:
\[ \text{Cu}^{2+} (aq) + 2\text{e}^- \rightarrow \text{Cu (s)} \]

5. **Purification of Copper**:
- As the process continues, the impure copper at the anode gets oxidized, while pure copper is deposited at the cathode. Impurities either remain in the solution or fall to the bottom of the cell as anode sludge.

6. **Final Product**:
- The result of this process is the production of high-purity copper at the cathode, while the anode loses mass due to the oxidation of copper.

### Correct Statements about the Process:
- The anode is made of impure copper.
- The cathode is a pure copper strip.
- The electrolyte is a solution of copper(II) sulfate (CuSO4).
- Copper ions from the anode dissolve into the electrolyte and are deposited on the cathode.