I cannot answer difinativley becuz benzos can stay in ur system for up to 30 days. She should not take that much again at first becuz she's not used to that level. If u give her it again remember it can cause respiratory depression. She should talk to a dr. about the death of ur father becuz she can go into depression and that's not somewhere either of u want to go. also if u r having difficulties with his passing , u too should talk to someone. U can talk to her about how u feel it may help both of u! My condolences to u and ur family!
Yes, it will be out of her system by then. I'm sure you already know it's not a good idea to give someone else your meds. I do understand this was a one time thing and a very stressful time for your daughter. I'm so sorry for your loss.