See explanation below.
Work Step by Step
a. Copper is coating the iron. b. Oxidizing agent is Cu2+ and the reducing agent is Fe. c. Yes, as the reaction is being spontaneous, this can be made into a voltaic cell. d. Cu2+(aq) + Fe(s) → Cu(s) + Fe2+(aq) e. E cell = E°Cu2+ - E°Fe2+ = 0.34 V - (-0.44 V) = 0.78 V