Identify the SOA and SRA
Write chemical equations to represent the cathode, the anode, and the overall (net) cell reactions (including the half cell and standard cell potentials)
Draw a diagram labeling the electrodes, polarity of electrodes, electrolytes, direction of electron flow, and direction of ion movement
Pt(s) / H2(g),OH^-(aq) // OH^-(aq), O2(g) / Pt(s)
SOA (Species of Interest at the Anode): OH^-(aq), O2(g)
SRA (Species of Interest at the Cathode): H2(g)
Cathode half-reaction: 2H2(g) + 4OH^-(aq) -> 4H2O(l) + 4e^-
Anode half-reaction: O2(g) + 2H2O(l) + 4e^- -> 4OH^-(aq)
Overall (net) cell reaction: 2H2(g) + O2(g) -> 2H2O(l)
Standard cell potential: Calculating the standard cell potential requires the standard reduction potentials for the half-reactions at each electrode. Unfortunately, the input does not provide this data.