Answer
The person has covered a distance of 4.8 kilometers.
Work Step by Step
We can find the total distance $d$ in meters.
$d = 8\times 600~m = 4800~m$
We know that 1 km = 1000 m
We can convert the distance to units of km.
$d = \frac{4800~m}{1}\times \frac{1~km}{1000~m} = 4.8~km$
The person has covered a distance of 4.8 kilometers.