Can you mix all dry ingredients for a cake and place ingredients in container and make cake the next day? 
There are a few questions on this site about French fries, I'd suggest you take a look. But I think the best answer is: baked sticks of potato do not French fries make. French fries are deep fried. You can never get the same results in air, although air fryers do come close. A normal oven bakes, not fries.  Here are some sites that experiment with fries and crispiness [1] [2]. 