What weight of `Ni` is plated out in an electrolysis of aqueous `NiSO_(4)` solution that it takes place to deposit `2G` OF `Ag` in a silver coulometer that is arranged in series with `NiSO_(4)` electrolytic cell. `[` Atomic weight of `Ag=107.8 am u , ` atomic weight of `Ni=58.7 am u]`

Explanation

To solve the problem of determining the weight of nickel (Ni) plated out during the electrolysis of an aqueous NiSO₄ solution, given that 2 grams of silver (Ag) is deposited in a silver coulometer arranged in series, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Relationship Between the Two Electrolytes**:
Since the silver coulometer and the NiSO₄ electrolytic cell are connected in series, the same charge (Q) flows through both cells. According to Faraday's second law of electrolysis, the amount of substance deposited is directly proportional to the charge passed through the cell.

2. **Calculate the Equivalent Weight of Silver (Ag)**:
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