How many minutes did nickel plating take if a nickel layer with a mass of m = 1.8 g was deposited

How many minutes did nickel plating take if a nickel layer with a mass of m = 1.8 g was deposited on the product, and the nickel plating process was carried out at a current strength of I = 2 A?

Initial data: m (mass of deposited nickel) = 1.8 g (1.8 * 10-3 kg); I (current strength at which the nickel plating process was carried out) = 2 A.

Reference values: k (electrochemical equivalent of nickel) = 30.4 * 10-8 kg / C.

The duration of the nickel plating process is determined from the formula: m = k * I * t, whence t = m / (k * I).

Let’s make a calculation: t = 1.8 * 10-3 / (30.4 * 10-8 * 2) ≈ 2961 s (49 min 21 s).

Answer: Nickel plating lasted 2961 s or 49 min 21 s.