Yes, you can use aluminum foil as a substitute for tin foil in baking pans or grilling pans. Both aluminum and tin foil are commonly used for similar purposes, such as lining pans, wrapping food, and preventing food from sticking. Aluminum foil is more widely available and less expensive than tin foil. It conducts heat well and is non-toxic, making it a suitable alternative for most baking and grilling needs. However, note that aluminum may react with acidic foods, so it's best to avoid using it in such cases or to use a heavier gauge to minimize contact with the food.