Electrolysis is used to silver plate an iron spoon by placing it in a solution containing Ag + ions and connecting the spoon and a silver electrode to a battery. Enter the half‑reaction that takes place when the spoon is plated with silver. Include phases.

Ag (s) → Ag ⁺ (aq) + e⁻

Ag ⁺ (aq) + e⁻ → Ag (s)

Explanation:

Electroplating is a way of electrolysis, where a thin layer of metal is used to plate a determined object. It is a kinda process to purify a material you want.

The anode contains the metal you want to plate with, in this case, the Ag.

Anode contains the half reaction of oxidation so:

Ag (s) → Ag ⁺ (aq) + e⁻

In the cathode, you have the spoon, where it takes place the half reaction of reduction:

Ag ⁺ (aq) + e⁻ → Ag (s)

The electrolytic cell, where the redox reaction takes place, must be filled with a AgNO₃ solution.

Silver from the anode gets dissolved to reach the cathode, where the spoon will be plated.