Write the following components for the electrolytic refining of a piece of impure copper :
(i) The anode

Explanation

To answer the question regarding the components for the electrolytic refining of a piece of impure copper, we will focus on the anode.

### Step-by-Step Solution:

1. **Understanding the Electrolytic Cell**:
An electrolytic cell consists of two electrodes: the anode (positive electrode) and the cathode (negative electrode). In the case of copper refining, the anode is where oxidation occurs.

2. **Identifying the Anode Material**:
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