Is it safe to use aluminum foil or aluminum containers in oven?

Aluminum foil or Aluminum containers are safe to be used in the oven. 

If Aluminum foils or aluminum foil containers are purchased through regular channels, it is safer to wrap the food for grilling than directly grilling the food, so they are non-toxic. 

The melting point of aluminum is 660 degrees Celsius, and the temperature in the oven generally does not exceed 400 degrees Celsius. So Aluminium doesn't melt in the oven, and it also prevents the oil from escaping the food and avoid the food to stick to the pan.