Final answer:
The standard potential of the galvanic cell can be calculated using the formula E°cell = E°cathode - E°anode.
Step-by-step explanation:
The standard potential of a galvanic cell can be calculated using the formula:
E°cell = E°cathode - E°anode
In this case, the cathode is Pt(s) | Fe³⁺(aq), Fe²⁺(aq) and the anode is Ag₂+ | Ag(s). Using data from Appendix L in your textbook, you can find the standard reduction potentials for each half-reaction and calculate the standard cell potential.