What is the distance light travels in 1×10 ^ 16 s?

Given:
t = 1 * 10^16 seconds – time interval;
c = 3 * 10^5 kilometers per second – the speed of light in vacuum (constant).
It is required to determine what distance L (meter) the light will travel during the time interval t.
Let’s convert the units of measurement of speed from kilometers per second to meters per second:
c = 3 * 10^5 km / s = 3 * 10^5 * 10^3 = 3 * 108 meters per second.
Since light in a vacuum moves at a constant speed, then:
L = c * t = 3 * 10^8 * 1 * 1016 = 3 * 10^8 * 10^16 = 3 * 10 (8 + 16) = 3 * 10^24 meters.
Answer: light will travel a distance of 3 * 10^24 meters.