Consider a methane-oxygen fuel cell in which the reaction at the anode is CH4 + 2H2O

Question:

Consider a methane-oxygen fuel cell in which the reaction at the anode is
CH4 + 2H2O → CO2 + 8e- + 8H+
The electrons produced by the reaction flow through the external load, and the positive ions migrate through the electrolyte to the cathode, where the reaction is
8 e- + 8 H+ + 2 O2 → 4 H2O
Assume that the fuel cell operates at 1200 K instead of at room temperature.