The overall reaction in a chemical cell is shown below as the reaction takes place (look in image)

Your selected answer is correct. Zn, in the reaction, is being oxidized to its 2+ state. In this half reaction, the elemental zinc is dissolving back into the zinc solution-this can be seen by the state change from “s” to “aq”. Consequently, the copper electrode increases in mass as the Cu2+ is reduced back to elemental copper at the electrode.

The answer for this question is d. none of these

The answer is not c