Does marinating chicken delay the proces from chicken to go bad?

Answer 1

Yes, spices help to prevent food from going bad. That's why they are more common in warmer climats. It also depends on what in particular you are using for a marinade. Salt, sugar and acids (vinegar) can all be preservatives. Even with the best marinades, however, you will only be buying small amounts of time, maybe a few days, not weeks or months. Either way, your best bet to avoid foodborn illness is to buy fresh, freeze what you don't need immediately and cook the chicken fully as soon as possible. a good marinade may help to extend life in the fridge, but it is no substitute for good food safety practises.

Answer 2

Probably 1 - 2 days as described here

http://answers.wikia.com/wiki/How_long_does_a_thawed_fresh_chicken_keep_in_the_refridgerator