For a given galvanic cell, the standard cell potential can be calculated by subtracting the standard half-cell potential of the reaction that occurs at the cathode from the standard half-cell potential of the reaction that occurs at the anode: e∘cell=e∘red(reduction process)−e∘red(oxidation process)

for a given galvanic cell, the standard cell potential can be calculated by subtracting the standard half-cell potential of the reaction that occurs at the cathode from the standard half-cell potential of the reaction that occurs at the anode:

e∘cell=e∘red(reduction process)−e∘red(oxidation process)

part a

calculate the standard cell potential given the following standard reduction potentials:
al3++3e−→al; e∘=−1.66 v
cu2++2e−→cu; e∘=0.340 v
express your answer to two decimal places and include the appropriate units.