Although the use by date on the package is a guideline, chicken tends to be pretty dodgy stuff and many bacteria love to feed on it, so I would say a day after the use by is ok but no more. If you mean you've cooked it then it really depends what you're using it for. To eat as cold meat I would avoid after 3 hours. If you're adding it to a boiling soup or boiling down to a stock then maybe even a week is ok.
If it was unkooked in the marrinade for 8 days, NO.
This food will keep for about 4 days in the refrigerator. Place the food in an air tight container for the best results. This food can easily be transferred to the freezer for longer storage time.
Kept covered at refrigerator temperatures, the chicken is good for three to four days. But after one day refrigerated, it will start to taste like wet newspaper.
Each package of chicken has an expiration date to go by. The chicken should be kept in the fridge for as long as the expiration date is good. Always freeze before the expiration date.
Properly packaged, handled and stored, it should last 3-5 days. Keep it in the coldest part of your fridge.
Chicken - or any poultry - is one of those things you need to be careful about storing for too long. Check with your city or county health authority.
Six month?
Raw chicken should only be kept refrigerated for two days. Chicken carries bacteria like salmonella which can be fatal for those with compromised immune systems.
Only if it's been kept in the fridge overnight.
Raw chicken should never be left at room temperature. Once it's cooked it's safer; if the party lasted only a couple of hours it's probably fine. On the other hand, if you started at 8 and went to four in the morning, throw it out.
Meats are kept better in the freezer. Meats can be kept in the refrigerator for 3 to 4 days if raw and 1 to 2 days longer if cooked. Always place cooked meats in an airtight container.
Yes, you can. You can reheat chicken stew in a crock-pot, in a sauce pan over medium-low heat, in the microwave, or in the oven in an oven-proof dish or pan.
It could be, if it has been kept in the coldest part of the refrigerator. Give it the sniff test. If it no longer smells like fresh chicken or smells of ammonia, vinegar or yeast or feels slimy or sticky, don't use it.