above comments are true but there can be an alternative....

The fact is you can't be on payroll for the period starting the expiration date of CPT till u get your OPT.  That being said you have to temporarily stop working or if your company agrees you can keep working and not run the payroll for that duration and get paid later when you have your EAD card.  but for this to happen you need your company's support...... talk to your manager, things may not be in his/her hands but they can talk to payroll department if that is possible.   Once you get your EAD card, you can get paid as "Bonus" or something to be added to your first paycheck(after your receive ur EAD) along with that pay period.

if the company wants they can do it for you and it won't be on records anywhere that you worked but you will get paid for the hours you worked during that period. but if the company have strict policies then you have to be temporarily out of work. enjoy your holidays :)