Hi, I have a question about electrochemistry. *Will Fe dissolve in 1.0M Ce4+? If so, will Fe3+ or Fe2+ be formed?*

I think I have to use E°=0.0592/n(logK) to solve this question, but I'm not sure what the value of n would be. I have the answer (Yes, and Fe2+), but would like to understand how I can arrive at that answer.

This is my first post, so feel free to let me know if there's a rule I should abide by!