Final answer:
The coach will have $42,764.80 withheld during the year for Social Security and Medicare taxes.
Step-by-step explanation:
The Social Security tax rate is 6.2% and the Medicare tax rate is 1.45%. However, the Social Security tax is only applicable up to a maximum base amount which is $128,400. In this case, the coach's salary is $2,400,000 per year, so the Social Security tax will only be calculated on $128,400.
To calculate the amount withheld for Social Security tax: $128,400 x 6.2% = $7,964.80.
To calculate the amount withheld for Medicare tax: $2,400,000 x 1.45% = $34,800.
Therefore, the total amount withheld during the year for the coach's Social Security and Medicare taxes will be $7,964.80 + $34,800 = $42,764.80.