There are 60 seconds in a minute, and 60 minutes in an hour, so there are 60 x 60 = 3600 seconds in an hour.

Therefore, the number of seconds in an 8-hour day is 8 x 3600 = 28,800 seconds.

Brilco Manufacturing produces 0.2 of a brick every tenth of a second, which is equivalent to producing 0.2/10 = 0.02 bricks per second.

0.02 bricks/second x 28,800 seconds = 576 bricks

Therefore, Brilco Manufacturing can produce 576 bricks in an 8-hour day.