Write the cell reaction for each of the following cells.
`Ni(s)|Ni^(2+)(aq)||Cu^(2+)(aq)|Cu(s).`

Explanation

To write the cell reaction for the given electrochemical cell represented as `Ni(s)|Ni^(2+)(aq)||Cu^(2+)(aq)|Cu(s)`, we need to identify the oxidation and reduction processes occurring at the anode and cathode, respectively.

### Step-by-Step Solution:

1. **Identify the Anode and Cathode:**
- In the given cell representation, the left side (`Ni(s)|Ni^(2+)(aq)`) represents the anode where oxidation occurs.
- The right side (`Cu^(2+)(aq)|Cu(s)`) represents the cathode where reduction occurs.

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