What surface area of a lake could be covered by 4.5 litres of motor oil?

To determine the surface area that 4.5 liters of motor oil can cover, we first need to know the average thickness of the oil layer. Assuming a thickness of about 1 millimeter (0.001 meters), we can use the formula for volume (Volume = Area × Thickness) to find the area. By rearranging the formula, Area = Volume / Thickness, and substituting the volume (4.5 liters = 0.0045 cubic meters) and thickness, we find that the oil could cover an area of approximately 4.5 square meters.