A galvanic cell is set up by making 1 M solutions of FeSO4 and ZnSO4, with an iron (Fe) electrode in the FeSO4 solution and a zinc (Zn) electrode in the ZnSO4 solution.   The half reactions that drive the galvanic cell are:    Fe2+ + 2e- → Fe      (at the cathode)               Zn  →  Zn2+ + 2e-    (at the anode) What happens to the mass of the Fe electrode while the cell runs?

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Electrolysis

Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electrolyte, electrodes, and some form of external power source are the main components required for conducting electrolysis. A partition, such as an ion-exchange membrane or a salt bridge, may also be used, but this is optional. These are primarily used to prevent the products from diffusing near the opposing electrode.