You have access to the following half-cells at 298 K:
(1) Ag^{+} + e^- → Ag E° = +0.80 V
(2) Br_{2}(l) + 2 e^- → 2 Br^- E° = +1.07 V
(3) Al^{3+} + 3 e^- → Al E° = −1.66 V
Select the combination of two half-cells that will give the largest positive E°_{cell} when assembled into a galvanic cell at standard conditions, and report the numerical value of that E°_{cell}.